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Date: Fri, 03 Feb 2012 17:36:47 +0100
From: Peter Rosin <peda AT lysator DOT liu DOT se>
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To: cygwin AT cygwin DOT com
Subject: Re: rm fails but returns success
References: <4F2C0533 DOT 2070802 AT lysator DOT liu DOT se> <20120203161701 DOT GE30293 AT calimero DOT vinschen DOT de>
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Corinna Vinschen skrev 2012-02-03 17:17:
> On Feb  3 17:02, Peter Rosin wrote:
>> Hi!
>>
>> I have this annoying leftover file from a automake testsuite run.
>> I don't know if it was created by an MSYS process or a Cygwin
>> process, but I can't get rid of it.  I can't take ownership of
>> it either, not even as admin.  I haven't tried stopping all
>> MSYS/Cygwin processes yet, nor rebooting, but I'd rather not.
>>
>> Any help with that is appreciated.  No, not rebooting :-)
>>
>> However, that is not really why I'm writing, I'm writing to
>> report the following bug related to the above file.
>>
>> $ uname -a
>> CYGWIN_NT-6.1-WOW64 peda-pc 1.7.10s(0.259/5/3) 20120123 00:15:09 i686 Cygwin
>> $ ls -l aclibobj.log-t
>> -rw-r----- 1 ???????? ???????? 2113 Jan 31 16:09 aclibobj.log-t
>> $ rm aclibobj.log-t; echo $?
>> rm: remove write-protected regular file `aclibobj.log-t'? yes
>> 0
> 
> Send an strace of this, please.  One reason that rm (better: unlink(2))
> reports success is if the file is still in use by another process but
> it's already marked as "delete pending" in the OS.  This should only
> occur if a non-Cygwin process is still holding a handle to the file.

I found, using process explorer, a suspended MSYS expr process which
have CWD c:\Cygwin\home\peda\automake\tests\aclibobj.dir\
which is probably related.  I will not (try to) touch that until you
say that this is all as it should be and don't need me to test anything.

Cheers,
Peter

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